canvas (ble/canvas/trace): fix text justification for empty lines

docs/ChangeLog.md

@@ -315,6 +315,7 @@
 - main. util: fix problems of readlink etc. found by test in macOS (reported by aiotter) `#D1849` fa955c1 `#D1855` a22e145
 - progcomp: fix a bug that `COMP_WORDBREAKS` is ignored `#D1872` 4d2dd35
 - global: quote `return $?` `#D1884` 801d14a
+- canvas (`ble/canvas/trace`): fix text justification for empty lines (reported by rashil2000) `#D1894` xxxxxxx
 
 ## Documentation
 

lib/test-canvas.sh

@@ -171,7 +171,7 @@ ble/test:canvas/check-trace
 #------------------------------------------------------------------------------
 # test-trace.sh
 
-ble/test/start-section 'ble/canvas/trace (justify)' 24
+ble/test/start-section 'ble/canvas/trace (justify)' 30
 
 ble/test:canvas/trace.contra 30:1 'a b c' justify << EOF
 a             b              c$
@@ -278,6 +278,27 @@ if [[ $_ble_test_canvas_contra ]]; then
   ble/test 'echo "bbox:$x1,$y1-$x2,$y2"' stdout='bbox:2,0-6,1'
 fi
 
+
+# regression tests for https://github.com/akinomyoga/ble.sh/issues/239
+ble/test:canvas/trace.contra 30:3 $'\n2022-11-28' right:measure-bbox:measure-gbox << EOF
+                              $
+                    2022-11-28$
+                              $
+EOF
+if [[ $_ble_test_canvas_contra ]]; then
+  ble/test 'echo "bbox:$x1,$y1-$x2,$y2"' stdout='bbox:0,0-30,2'
+  ble/test 'echo "gbox:$gx1,$gy1-$gx2,$gy2"' stdout='gbox:20,1-30,2'
+fi
+ble/test:canvas/trace.contra 30:3 $'\n\n2022-11-28' right:measure-bbox:measure-gbox << EOF
+                              $
+                              $
+                    2022-11-28$
+EOF
+if [[ $_ble_test_canvas_contra ]]; then
+  ble/test 'echo "bbox:$x1,$y1-$x2,$y2"' stdout='bbox:0,0-30,3'
+  ble/test 'echo "gbox:$gx1,$gy1-$gx2,$gy2"' stdout='gbox:20,2-30,3'
+fi
+
 #------------------------------------------------------------------------------
 # trace-text
 

memo/D1894/.gitignore

@@ -0,0 +1,8 @@
+# gitignore
+
+/sample
+/sample.zip
+/a.txt
+
+# this file was the output of "starship init bash --print-full-init"
+/starship.bash

memo/D1894/bashrc

@@ -0,0 +1,10 @@
+# bashrc
+
+export STARSHIP_CONFIG=$PWD/starship-left.toml
+starship_config_right=$PWD/starship-right.toml
+eval "$(starship init bash)"
+source ~/.mwg/src/ble.sh/out/ble.sh
+bleopt prompt_ruler=empty-line
+blehook PRECMD+='bleopt prompt_rps1="$(STARSHIP_CONFIG=$starship_config_right starship prompt)"'
+
+#blehook PRECMD+='cat -A <<< "[rps1: $bleopt_prompt_rps1][[ps1: $PS1]" >> a.txt'

memo/D1894/bashrc2

@@ -0,0 +1,6 @@
+# bashrc
+
+export STARSHIP_CONFIG=$PWD/starship.toml
+eval "$(starship init bash)"
+source ~/.mwg/src/ble.sh/out/ble.sh --norc
+blehook PRECMD+='bleopt prompt_rps1="$(starship prompt --right)"'

memo/D1894/bashrc3

@@ -0,0 +1,16 @@
+# bashrc
+
+eval "$(starship init bash)"
+
+if source out/ble.sh --noattach --norc; then
+  blehook PRECMD+='bleopt prompt_rps1="\n\n$(starship prompt --right)"'
+
+  # function ble/prompt/backslash:starship/right {
+  #   local right
+  #   ble/util/assign right 'starship prompt --right'
+  #   ble/prompt/process-prompt-string "$right"
+  # }
+  # bleopt prompt_rps1="\n\n\q{starship/right}"
+
+  ble-attach
+fi

memo/D1894/blerc

@@ -0,0 +1,6 @@
+# blerc
+
+export STARSHIP_CONFIG=~/.config/starship-left.toml
+starship_config_right=~/.config/starship-right.toml
+bleopt prompt_ruler=empty-line
+blehook PRECMD+='bleopt prompt_rps1="$(STARSHIP_CONFIG=$starship_config_right starship prompt)"'

memo/D1894/starship-left.toml

@@ -0,0 +1,156 @@
+add_newline = false
+format = """\
+  $username\
+  $directory\
+  $package\
+  $git_branch\
+  $git_commit\
+  $git_state\
+  $git_status\
+  $line_break\
+  $jobs\
+  $character\
+  """
+
+[directory]
+truncate_to_repo = true
+read_only = " "
+truncation_symbol = "…/"
+
+[package]
+symbol = " "
+
+[git_branch]
+style = 'italic purple'
+symbol = " "
+
+[git_commit]
+style = "bold white"
+tag_symbol = "笠 "
+tag_disabled = false
+
+[git_status]
+conflicted = "= "
+ahead = "⇡×${count} "
+behind = "⇣×${count} "
+diverged = "${ahead_count}×⇕×${behind_count} "
+untracked = "?×${count} "
+stashed = "\\$×${count} "
+modified = "!×${count} "
+staged = "+×${count} "
+renamed = "»×${count} "
+deleted = "✘×${count} "
+
+[fill]
+symbol = " "
+
+[cmd_duration]
+format = " took [$duration]($style)"
+show_notifications = true
+min_time_to_notify = 60_000
+
+[env_var.WSL_DISTRO_NAME]
+format = " [$env_value]($style)"
+style = "underline purple"
+
+[env_var.MSYSTEM]
+format = " [$env_value]($style)"
+style = "underline purple"
+
+[shell]
+format = " \\[[$indicator]($style)\\] at"
+powershell_indicator = "pwsh"
+style = "bold blue"
+disabled = false
+
+[battery]
+full_symbol = "•"
+discharging_symbol = ""
+charging_symbol = ""
+unknown_symbol = "!"
+format = " [$symbol$percentage]($style)"
+
+[[battery.display]]
+threshold = 20
+style = "italic red"
+
+[[battery.display]]
+threshold = 80
+style = "italic green"
+
+[[battery.display]]
+threshold = 100
+style = "italic yellow"
+
+[time]
+disabled = false
+format = " [$time]($style)"
+style = "italic cyan"
+
+[status]
+disabled = false
+format = "[$symbol$status]($style)"
+symbol = "✕ "
+
+[memory_usage]
+format = " $symbol[${ram}]($style)"
+threshold = -1
+symbol = " "
+disabled = false
+
+[aws]
+symbol = " "
+
+[dart]
+symbol = " "
+
+[docker_context]
+symbol = " "
+
+[elixir]
+symbol = " "
+
+[elm]
+symbol = " "
+
+[golang]
+symbol = " "
+
+# [haskell]
+# symbol = " "
+
+[hg_branch]
+symbol = " "
+
+[java]
+symbol = " "
+
+[julia]
+symbol = " "
+
+[nim]
+symbol = " "
+
+[nix_shell]
+symbol = " "
+
+[nodejs]
+symbol = " "
+
+[perl]
+symbol = " "
+
+[php]
+symbol = " "
+
+[python]
+symbol = " "
+
+[ruby]
+symbol = " "
+
+[rust]
+symbol = " "
+
+[swift]
+symbol = "ﯣ "